uboot-phytec

pcm052: board: Do not enable I2C2 code in the board file

As the I2C2 clock is now enabled in the generic clock code, we can remove
this code from a board file.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>